| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Arnold, Julianna B (10)
|
ADSARY |
40.14 |
38.42 |
-1.72 |
| 2 |
Keller, Catherine E (10)
|
ADALBS |
51.03 |
44.03 |
-7.00 |
| 3 |
Edwards, Lauren (10)
|
ADSARY |
48.01 |
47.14 |
-0.87 |
| 4 |
Dansie, Georgia L (9)
|
ADSARY |
47.14 |
48.09 |
0.95 |
| 5 |
McNamee, Ellie R (9)
|
ADGRGF |
48.10 |
50.36 |
2.26 |
| 6 |
White, Fiona G (9)
|
ADBFIN |
56.16 |
50.46 |
-5.70 |
| 7 |
Mandlik, Deeti S (10)
|
ADNHA |
|
52.52 |
- |
| 8 |
Trinkaus, Olive C (10)
|
ADNHA |
52.99 |
53.91 |
0.92 |
| 9 |
Matt, Keira M (10)
|
ADNHA |
1:00.53 |
56.43 |
-4.10 |
| 10 |
Rio, Ivy J (10)
|
ADNHA |
|
57.01 |
- |
| 11 |
Perry, Liliana T (9)
|
ADSARY |
1:02.90 |
1:03.54 |
0.64 |
| 12 |
Douglass, Laila M (10)
|
ADCANA |
1:05.06 |
1:10.91 |
5.85 |
|
Fernandez-Turo, Jimena M (10)
|
ADNHA |
|
DQ |
- |
|
Coffay, Karina M (9)
|
ADNHA |
|
DQ |
- |
|
Carroll-Dorn, Lillian E (9)
|
ADNHA |
|
DQ |
- |
|
Craine, Frances L (9)
|
ADGRGF |
1:03.22 |
DQ |
- |
|
Sartori, Cecelia N (9)
|
ADALBS |
|
DQ |
- |
|
Lopez, Scarlett (10)
|
ADGRGF |
1:06.94 |
NS |
- |
|
Comisky, Charlotte H (9)
|
ADGRGF |
1:35.47 |
NS |
- |
|
Pipes, Aria E (9)
|
ADSCHE |
|
NS |
- |